(19)
(11) EP 1 649 513 A2

(12)

(88) Date of publication A3:
21.04.2005

(43) Date of publication:
26.04.2006 Bulletin 2006/17

(21) Application number: 04778297.4

(22) Date of filing: 29.06.2004
(51) International Patent Classification (IPC): 
H01L 25/00(1974.07)
(86) International application number:
PCT/US2004/022720
(87) International publication number:
WO 2005/008738 (27.01.2005 Gazette 2005/04)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(30) Priority: 11.07.2003 US 618024

(71) Applicant: CREE, INC.
Durham, NC 27703 (US)

(72) Inventors:
  • VAUDO, Robert, P.
    New Milford, CT 06776 (US)
  • XU, Xueping
    Stanford, CT 06906 (US)
  • BRANDES, George, R.
    Raleigh, NC 27614 (US)

(74) Representative: Viering, Jentschura & Partner 
Steinsdorfstrasse 6
80538 München
80538 München (DE)

   


(54) SEMI-INSULATING GaN AND METHOD OF MAKING THE SAME